Alliance Laundry Systems 801504R1, Installation Manual

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Installation
33
801504 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Exhaust System
IMPORTANT: Keep exhaust duct as short as
possible.
NOTE: Be certain old ducts are cleaned before
installing your new unit.
For best drying results, recommended maximum
length of exhaust system is shown in
Table 2 .
To prevent backdraft when dryer is not in operation,
outer end of exhaust pipe must have a weather hood
with hinged dampers (obtain locally).
NOTE: Weather hood should be installed at least
12 in. (30.5 cm) above the ground. Larger
clearances may be necessary for installations where
heavy snowfall can occur.
Number of
90° Elbows
Weather Hood Type
Recommended Use Only for Short Run Installations
Maximum length of 4" (10.2 cm) diameter rigid metal duct
0 65 feet (19.8 m) 55 feet (16.8 m)
1 55 feet (16.8 m) 47 feet (14.3 m)
2 47 feet (14.3 m) 41 feet (12.5 m)
3 36 feet (11.0 m) 30 feet (9.1 m)
4 28 feet (8.5 m) 22 feet (6.7 m)
Maximum length of 4" (10.2 cm) diameter flexible metal duct
0 45 feet (13.7 m) 35 feet (10.7 m)
1 35 feet (10.7 m) 27 feet (8.2 m)
2 30 feet (9.1 m) 21 feet (6.4 m)
3 25 feet (7.6 m) 17 feet (5.2 m)
4 20 feet (6.1 m) 15 feet (4.5 m)
NOTE: Deduct 6 feet (1.8 m) for each additional elbow.
Table 2
D673I
4"
10.2 cm
4"
10.2 cm
2-1/2"
(6.35 cm)
D802I